CN213206474U - Crank connecting rod assembly with good lubricating property - Google Patents
Crank connecting rod assembly with good lubricating property Download PDFInfo
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- CN213206474U CN213206474U CN202021607659.0U CN202021607659U CN213206474U CN 213206474 U CN213206474 U CN 213206474U CN 202021607659 U CN202021607659 U CN 202021607659U CN 213206474 U CN213206474 U CN 213206474U
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- crank
- oil
- connecting rod
- oil duct
- horizontal
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Abstract
The utility model discloses a crank connecting rod assembly that lubricity is good, its characterized in that: the oil-containing screw is arranged in the horizontal oil duct, an oil passing hole is formed in the oil-containing screw in the axis direction, and the diameter of the oil passing hole is one fifth of the diameter of the horizontal oil duct. The beneficial effects of the utility model include: the crank rod lubricating device has a plurality of lubricating channels, solves the lubricating problem of the connecting piece on the crank rod, obviously prolongs the service life of a moving part, and improves the comprehensive performance of an engine.
Description
Technical Field
The utility model relates to a crank link assembly field, concretely relates to crank link assembly that lubricity is good.
Background
The crank connecting rod mechanism is a main moving part for realizing the working cycle of the engine and finishing energy conversion. In motorcycle engines, however, a complete lubrication system is necessary. In the prior art, the design of a lubricating oil path mainly aims at the lubrication of a connecting part of a connecting rod, the lubricating oil path is too single, the lubrication of a connecting piece on a crankshaft is neglected, and the connecting piece on the crankshaft is often subjected to quick friction temperature rise when being used as power transmission in actual work, so that the performance and the service life of an engine can be influenced due to the fact that the connecting piece cannot be well lubricated.
Disclosure of Invention
To the weak point among the above-mentioned prior art, the utility model provides a crank connecting rod assembly that lubricity is good, it has many lubricating-oil ducts, lubricates to each important part in the engine, has improved the comprehensive properties of engine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a crank connecting rod assembly with good lubricity is characterized in that: the crank pin is arranged between the connecting rod and the crank pin, the crank pin is provided with a first oil duct which axially penetrates and a second oil duct which communicates the first oil duct and the bearing bush, a first journal section which is close to the big end of the left crank is provided with a third oil duct which radially penetrates, the third oil duct is communicated with the first oil duct through an inclined oil hole which is arranged on the left crank and the crank pin, the right crank is provided with a horizontal oil duct along the axial direction, the horizontal oil duct extends from the right end face of the right crank to the axle center of the first journal section which is close to the big end, and an oil outlet which is radially communicated with the horizontal oil duct is arranged on the first journal section which is close to the big end of the right crank, be provided with the oiliness screw in the horizontal oil duct, the oiliness screw passes through the external screw thread fastening and is in the horizontal oil duct, the oil outlet with the oil storage chamber has between the oiliness screw, the oiliness hole of crossing along the axis direction has on the oiliness screw, the diameter of crossing the oilhole is one fifth of horizontal oil duct diameter.
Furthermore, both ends of the first oil duct are provided with plugs.
Furthermore, a radial oil outlet hole is formed in the horizontal oil passage behind the oil-containing screw.
The beneficial effects of the utility model include: the crank rod lubricating device has a plurality of lubricating channels, solves the lubricating problem of the connecting piece on the crank rod, obviously prolongs the service life of a moving part, and improves the comprehensive performance of an engine.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
A crank connecting rod assembly with good lubricating property as shown in figures 1-2 comprises a left crank 1, a right crank 4, a crank pin 5 and a connecting rod 3. The big head end of the connecting rod 3 is connected with the left crank 1 and the right crank 4 through the crank pin 5, wherein the connecting rod 3 is positioned between the left crank 1 and the right crank 4. And a bearing bush 2 is arranged between the connecting rod 3 and the crank pin 5 to achieve the purpose of reducing friction. In order to further reduce the friction of the bearing shell 2, the connecting rod 3, and the crank pin 5, the crank pin 5 has a first oil passage 51 axially penetrating therethrough, and a second oil passage 52 communicating the first oil passage 51 with the bearing shell 2. Meanwhile, a first journal section close to the large end of the left crank 1 is provided with a third oil passage 11 which is through in the radial direction, the third oil passage 11 is communicated with the first oil passage 51 through an inclined oil hole 12 which is formed in the left crank 1 and the crank pin 5, the third oil passage 11 is connected with a pressure oil passage on the engine shell, so that pressure oil enters the left crank 1, enters the first oil passage 51 through the inclined oil hole 12, and finally enters the bearing bush 2 through a second oil passage 52 to lubricate the bearing bush 2 and the connecting rod 3, so that friction is reduced, and temperature rise is reduced.
In addition, the right crank 4 is provided with a horizontal oil passage 41 along the axial direction, and the horizontal oil passage 41 extends from the right end face of the right crank 4 to the axle center of the first journal section close to the large end. An oil outlet hole 42 which is radially communicated with the horizontal oil channel 41 is formed in the first journal section of the right crank 4 close to the large end, and pressure oil entering the right crank 4 from the right end face of the right crank 4 can flow out from the oil outlet hole 42 to lubricate a connecting piece on the right crank shaft, wherein the connecting piece can be a bearing or a chain wheel. In this example, an oil-containing screw 6 is provided in the horizontal oil passage 41 for controlling the amount of oil and storing the oil. The oil-containing screw 6 is fastened in the horizontal oil passage 41 through an external thread, the horizontal oil passage 41 is used as an oil storage cavity at a distance between the oil outlet hole 42 and the oil-containing screw 6, the oil passing hole 61 along the axial direction is formed in the oil-containing screw 6, and the diameter of the oil passing hole 61 is one fifth of that of the horizontal oil passage 41, so that the flow of lubricating oil entering the oil storage cavity can be controlled, and meanwhile, the diameter of the oil outlet hole 42 is larger than that of the oil passing hole 61, so that the pressure reduction purpose can be achieved.
Since the first oil passage 51 is axially through-machined during machining, the plugs 7 are provided at both ends of the first oil passage 51 so that oil can be stored in the first oil passage 51.
As shown in fig. 2, in other embodiments of the present invention, besides the above-mentioned features, the radial oil outlet 43 is further provided on the horizontal oil passage 41 behind the oil-containing screw 6, so that the pressure oil in the horizontal oil passage 41 can be distributed to other connecting parts on the right crank 4 for lubrication and cooling.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (3)
1. A crank connecting rod assembly with good lubricity is characterized in that: the crank pin structure comprises a left crank (1), a right crank (4), a crank pin (5) and a connecting rod (3), wherein the big end of the connecting rod (3) is connected with the left crank (1) and the right crank (4) through the crank pin (5), the connecting rod (3) is positioned between the left crank (1) and the right crank (4), a bearing bush (2) is arranged between the connecting rod (3) and the crank pin (5), and the crank pin (5) is provided with a first oil duct (51) which axially penetrates through and a second oil duct (52) which communicates the first oil duct (51) and the bearing bush (2); have radial third oil duct (11) that link up on the first journal section that is close to the main aspects on left crank (1), third oil duct (11) is through setting up oblique oilhole (12) intercommunication on left crank (1) and crank pin (5) first oil duct (51), horizontal oil duct (41) along the axis direction have on right crank (4), horizontal oil duct (41) are followed right crank (4) right-hand member face extends to the axle center department that is close to the first journal section of main aspects, right crank (4) have radial intercommunication on the first journal section of main aspects oil duct (41) oil outlet (42), be provided with oiliness screw (6) in horizontal oil duct (41), oiliness screw (6) pass through the external screw thread fastening in horizontal oil duct (41), oil outlet (42) with the oil storage chamber has between oiliness screw (6), the oil-containing screw (6) is provided with an oil passing hole (61) along the axial direction, and the diameter of the oil passing hole (61) is one fifth of that of the horizontal oil passage (41).
2. The crank connecting rod assembly with good lubricity according to claim 1, wherein: and two ends of the first oil channel (51) are provided with plugs (7).
3. The crank connecting rod assembly with good lubricity according to claim 1, wherein: and a radial oil outlet hole (43) is also formed in the horizontal oil passage (41) behind the oil-containing screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021607659.0U CN213206474U (en) | 2020-08-05 | 2020-08-05 | Crank connecting rod assembly with good lubricating property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021607659.0U CN213206474U (en) | 2020-08-05 | 2020-08-05 | Crank connecting rod assembly with good lubricating property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213206474U true CN213206474U (en) | 2021-05-14 |
Family
ID=75837461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021607659.0U Active CN213206474U (en) | 2020-08-05 | 2020-08-05 | Crank connecting rod assembly with good lubricating property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213206474U (en) |
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2020
- 2020-08-05 CN CN202021607659.0U patent/CN213206474U/en active Active
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